Improvement in milk-cans



UNITED; STATES EMORY A. GRANT, OF LOUISVILLE, KENTUCKY, ASSIGNOR OF ONE-HALF OF Frioul.

HIS RIGHT TO SPANGLER J. HENDERSON, OF SAME PLACE.

IMPROVEMENT IN- MILK-CANS.

Specicationforming part of Letters Patent No. 131,436, dated September 17, 1872.

To all whom it may concern:

Be it known that I, EMORY A. GRANT, of the city of Louisville, county of J eferson and State of Kentucky, have invented certain Im- 4provements in Gans for Preserving and Transporting Milk or other similar articles, of which the following is a specication:

The rst part of this my invention consists more especially in the body of the can, the interi or part of which is made of tin or any other suitable material, and protected from the effects of the temperature of the atmosphere by means of its being enveloped in successive layers of felt, blanket, or other textile fabric, either homogeneous or of diierent kinds, interspersed withlayers of paper, oil-cloth, rubber, or other substances that will form, as near as possible, an air-tight partition between the layers, which may be put on in any thickness,

' (one or more inches,) and the whole covered with duck or other suitable cloth, and well painted to protect the whole from moisture, and at the same time strengthen the can and protect it from injury in handling, and also prevent the milk from freezing in winter and becoming sour in summer. The top part of this can is covered with metal in the form of a dome, with the edges soldered to the neck of the opening, and further strengthened by a heavy wire in the outside edges, as a protection to the can, and as a means of holdingl the handles in' theirl places at the top, while the lower ends are secured to the under side of the bottom. The second part of my invention consists in the self-sealing cover or stopper, the bottom and sides of which are made of metal, while the top is made of wood, leaving the interior to be filled in with the same material as that with which the' can is covered, and is held down in the can by a device hereafter described. The object of my invention is to provide a can or other suitable re- .ceptacle so constructed as to prevent milk from freezing in winter or becoming sour in summer, and at the same time answer as a Safe and convenient means of transportation, without danger to the can or the milk therein.

The drawing is a sectional view of the can,

' showing the covering and general arrangement of' the cover or stopper at the top.

In the drawing, A A is the body or inner portion of the can, all of which is made of tin or other suitable material, and made in the form of a cylinder with a dome-shaped top, having an opening in which to put in the milk. B is the inner or metallic part of the bottom, which is made concave on the upper side, with the edges turned down over and secured to a metal hoop or ring, and th'e whole inserted in the bottom of the can and riveted to it through the hoop, and is afterward soldered strongly on the inside, so as to render it perfectly secure and easily cleaned. Gis the composition covering or iilling, as above described. D is the bottom, which is made of wood of suitable thickness to give strength, the top part being made to correspond with the shape of the bottom of the can, with a small rabbet near the edge to answer as a rest for the lower end ofthe can, and a groove for .the ring to set in to keep it in place. This bottom is provided with a metal ring around it as a protection, and also as a means of securing the lower edge of the duck covering. E E E is the composition covering of the sides and top. F F is a metallic casing over the top, which is made to -it close down on the covering, with the inner edge soldered to the neck of the can, while the outer edge is provided with a strong wire to protect it. G G is the neck or opening, which is made in the form of a ring, with the lower edge soldered securely to the inner shell of the can, and has a small 'llange, H H, on the inside at the lower end, on

which a ring of India rubber is placed, and on which the end of the stopper J rests to make it air-tight. J is the stopper or cover, the bottom and sides of which are made of metal, while the top is` made of wood, but filled in with composition similar to that of the sides. K is an India-rubber ring under the flange of the cover, in order to render it air-tight when used in connection with another similar ring at the lower end. L is a small vent-tube through the stopper, closed at the top by a thumb-screw valve, the air entering at the sides near the top. N is a metal bar across the top in order to hold it down. This bar is turned downatthe ends, and is provided with catches, which are made to catch in similar ones on the sides of the neck of the can. Ris an adjustable key slipped over the head of a small set-screw, O,

by Letters latent, is-

the gum rings, which renders it air-tight, thefefore, what I claim as new, and desire to secure l. The combination of the can A A with its covering E E, F F, and G, also the bottom D and neck G Gr with its flanges H H and handles P l), as above described, when arranged, constructed, and operated substantially as and for the purpose set forth.

2. The stopper J with its filling E, vent-tube L, cross-bar N, and adjustable screw O, when arranged, constructed, and operated substautally as and for the purpose set forth.

EMORY A. GRANT.

Witnesses J ULIUs BARBAROUX, P. MGGANN. 

